
Yamaha nmax155 has a fuel consumption of 2.0L per 100 kilometers. Introduction: From the side view, the body lines and layers are quite rich, and the front part of the car looks quite substantial. It can accommodate a full helmet, which is very rare for small scooters, and the space utilization is very reasonable. Additional information: The main factors affecting carburetor fuel consumption include the quality of the carburetor itself, oil level, mixture ratio, oil needle, main metering hole, etc. Adjusting the carburetor can only set it to the appropriate standard, such as mixture ratio, oil level, oil needle height, etc. In addition to the carburetor, maintaining good vehicle condition and driving habits can also relatively reduce fuel consumption.

I've been commuting on my NMAX155 for almost a year now, riding through city streets and elevated roads daily. Initially, I was happy to see the manual claiming 1.9L per 100km, but my own calculations showed around 2.3L in summer with AC on and about 2.1L in winter. Recently, I went on a 200km lakeside tour, maintaining a steady 60km/h cruise speed, and surprisingly achieved a record low of 1.8L. With its 7.1-liter fuel tank filled up, it generally lasts just over 300km for commuting, but I'd advise against waiting for the fuel light to come on before refueling to avoid overheating the fuel pump. The bike is most fuel-efficient in the 60-80km/h range; it actually consumes more fuel on highways.

Yamaha's official website states that the NMAX155 has a WMTC fuel consumption of 1.9 liters per 100 kilometers, which is an ideal laboratory figure. Actual owner feedback shows fluctuations, mainly ranging between 2.0 to 2.5 liters. Three key factors affect the variation: throttle control intensity with the right hand, where frequent urban start-stop driving consumes 25% more than steady-speed cruising; temperature changes causing fuel consumption fluctuations of around 0.3 liters; and regular passenger or cargo loads potentially pushing consumption beyond 2.6 liters. Based on current 95-octane gasoline prices, the cost per kilometer is approximately 0.2 yuan. Its fuel efficiency is considered excellent for its class, though still more expensive compared to ordinary electric vehicles.

Tested three different year models of NMAX155. In stock condition, the 2021 model achieved 2.15L/100km, while the 2023 model with start-stop system reduced it to 2.08L. The modified version with wider tires surged to 2.6L. Three fuel consumption black holes to avoid: 12% increase when tire pressure falls below 190kPa; incorrect oil viscosity increasing friction loss; poor-quality gasoline causing incomplete combustion. Post- consumption may temporarily rise for about 50km as the ECU adapts to new parameters.

Data was collected from 82 vehicles in the car owner community. The average fuel consumption was 2.2L/100km, with the lowest record being 1.78L (steady speed on national highways) and the highest at 2.98L (daily cargo hauling uphill). Novices typically consume 0.3L more than experienced drivers, with more noticeable increases for those who modified exhaust or transmission systems. An interesting observation: using lower-grade 92-octane gasoline resulted in 3% higher consumption compared to 95-octane. It's recommended to clean the throttle body every 3,000 km, as severe carbon buildup can increase fuel consumption by up to 15%. For long-distance motorcycle trips, remember to choose a metal container for spare fuel.

The actual test showed a total of 376 kilometers from a full tank until running out of fuel. Fuel consumption is divided into three modes: ECO light constantly on for fuel-saving mode is about 2.0L/100km, normal riding is 2.2L, and aggressive driving can reach 2.7L. Three fuel-saving tips were discovered: turn off the engine if the red light lasts more than 15 seconds, the start-stop system can save 8% fuel; accelerate in advance when climbing to utilize inertia; maintain tire pressure at 200kPa front and 225kPa rear. The factory transmission tuning focuses on initial acceleration, modifying the transmission roller weight by adding 1 gram can reduce fuel consumption but sacrifices starting speed. Remember to change the air filter on time, a clogged air filter can increase fuel consumption by 20%.


